Haec est vera fraternitas

Source: 
Stuttgart, Württembergische Landesbibliothek, HB.I.55
Marginalia: 
7
Folio: 
156r
Sequence: 
12
Feast: 
Comm. plurimorum Martyrum
Office/Mass: 
L
Genre: 
A
Position: 
B
Cantus ID: 
003003
Mode: 
1
Differentia: 
a
Differentia database: 
1--h-h-hg-gf-gh-gg--4 66iii
Extra: 
a